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Journal of Cardiovascular Translational Research

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Open Access 01-08-2019 | Original Article

A Durable Porcine Pericardial Surgical Bioprosthetic Heart Valve: a Proof of Concept

Authors: Benyamin Rahmani, Christopher McGregor, Guerard Byrne, Gaetano Burriesci

Published in: Journal of Cardiovascular Translational Research | Issue 4/2019

Abstract

Bioprosthetic leaflets made from animal tissues are used in the majority of surgical and transcatheter cardiac valve replacements. This study develops a new surgical bioprosthesis, using porcine pericardial leaflets. Porcine pericardium was obtained from genetically engineered pigs with a mutation in the GGTA-1 gene (GTKO) and fixed in 0.6% glutaraldehyde, and used to develop a new surgical valve design. The valves underwent in vitro hydrodynamic test in a pulse duplicator and high-cycled accelerated wear testing and were evaluated for acute haemodynamics and thrombogenicity in a juvenile sheep implant study for 48 h. The porcine surgical pericardial heart valves (pSPHVs) exhibited excellent hydrodynamics and reached 200 million cycles of in vitro durability, with no observable damage. Juvenile sheep implants demonstrated normal valve function with no acute thrombogenic response for either material. The pSPHV incorporates a minimalistic construction method using a tissue-to-tissue design to cover the stent. This new design is a proof of concept alternative to the use of bovine pericardium and synthetic fabric in surgical bioprosthetic heart valves.

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Title: A Durable Porcine Pericardial Surgical Bioprosthetic Heart Valve: a Proof of Concept
Authors: Benyamin Rahmani
Christopher McGregor
Guerard Byrne
Gaetano Burriesci
Publication date: 01-08-2019
Publisher: Springer US
Published in: Journal of Cardiovascular Translational Research / Issue 4/2019
Print ISSN: 1937-5387
Electronic ISSN: 1937-5395
DOI: https://doi.org/10.1007/s12265-019-09868-3

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